Multi-Phase Modeling of Concrete Subject to Alkali Silica Reaction

This work focuses on a multi-phase chemo-elastic damage model for the description of the mechanical degradation of concrete induced by the Alkali Silica Reaction (ASR). A threephase and a two-phase simplified versions are considered. The model accounts for ASR kinetics, depending on temperature and humidity conditions, and the swelling pressure exerted by the ASR reaction products on the skeleton. Damage and viscous phenomena are taken into account. The model is used to simulate the experimental tests on concrete reactive beams performed at varying environmental humidity conditions.